From patchwork Sat Sep 14 06:13:31 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mauro Carvalho Chehab X-Patchwork-Id: 13804255 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id DD860FC6169 for ; Sat, 14 Sep 2024 06:17:19 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1spM2r-0000Kf-4V; Sat, 14 Sep 2024 02:14:09 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1spM2l-0008Nb-TI; Sat, 14 Sep 2024 02:14:03 -0400 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1spM2i-0000xC-Fa; Sat, 14 Sep 2024 02:14:03 -0400 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 6FED95C597C; Sat, 14 Sep 2024 06:13:51 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 29C1AC4CEDB; Sat, 14 Sep 2024 06:13:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1726294434; bh=VPED1MUiUBSfVtEJ06U9EQMoHhokkJihRfvfIUMl7Ak=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=AKjss2+bQSv29AjGClOQ7yQKPV+0iUfRCKZvdBfuCUXvNlCvsEM2kGLHevGMMDFvw a7hSEOe2u82SN7MbKwAqd9ZfvKm2sy2aB84M3ZMTZ7ScpLA8mCuJoVsUIfdUbgipCv 9QJXivZy0fPNOVlpypb2Ow7be09l6YrPtI04IRrtXqKWE0YGx+3nEg+s0O/E3YbSHo 21TlJS66rl6A3e9H9F+a0A5w9BPVuKrIJEIdWrIoWFJXeAM5lmcBrxITiDbwIpFSF1 tBhY415BeV30gg/QSVI+8UZtbfUVShCxhuH9BZGgxynXMCjGeAMwi/r/iFVOIazyHX STBkcO2GCm34Q== Received: from mchehab by mail.kernel.org with local (Exim 4.98) (envelope-from ) id 1spM2a-00000003V63-0pHS; Sat, 14 Sep 2024 08:13:52 +0200 From: Mauro Carvalho Chehab To: Igor Mammedov Cc: Jonathan Cameron , Shiju Jose , Mauro Carvalho Chehab , "Michael S. Tsirkin" , Ani Sinha , Dongjiu Geng , linux-kernel@vger.kernel.org, qemu-arm@nongnu.org, qemu-devel@nongnu.org Subject: [PATCH v10 10/21] acpi/ghes: make the GHES record generation more generic Date: Sat, 14 Sep 2024 08:13:31 +0200 Message-ID: <2530b364b179cc17f5d01f4dd2c8697671e31e2a.1726293808.git.mchehab+huawei@kernel.org> X-Mailer: git-send-email 2.46.0 In-Reply-To: References: MIME-Version: 1.0 Received-SPF: pass client-ip=2604:1380:4641:c500::1; envelope-from=mchehab+huawei@kernel.org; helo=dfw.source.kernel.org X-Spam_score_int: -44 X-Spam_score: -4.5 X-Spam_bar: ---- X-Spam_report: (-4.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.147, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Split the code into separate functions to allow using the common CPER filling code by different error sources. The generic code was moved to ghes_record_cper_errors(), and ghes_gen_err_data_uncorrectable_recoverable() now contains only a logic to fill GEGB part of the record. The remaining code to generate a memory error now belongs to acpi_ghes_record_errors() function. A further patch will give it a better name. Signed-off-by: Mauro Carvalho Chehab --- hw/acpi/ghes.c | 101 ++++++++++++++++++++++++++++++------------------- 1 file changed, 63 insertions(+), 38 deletions(-) diff --git a/hw/acpi/ghes.c b/hw/acpi/ghes.c index c88717fb1bef..f54865423f69 100644 --- a/hw/acpi/ghes.c +++ b/hw/acpi/ghes.c @@ -199,51 +199,30 @@ static void acpi_ghes_build_append_mem_cper(GArray *table, build_append_int_noprefix(table, 0, 7); } -static int acpi_ghes_record_mem_error(uint64_t error_block_address, - uint64_t error_physical_addr) +static void +ghes_gen_err_data_uncorrectable_recoverable(GArray *block, + const uint8_t *section_type, + int data_length) { - GArray *block; - - /* Memory Error Section Type */ - const uint8_t uefi_cper_mem_sec[] = - UUID_LE(0xA5BC1114, 0x6F64, 0x4EDE, 0xB8, 0x63, 0x3E, 0x83, \ - 0xED, 0x7C, 0x83, 0xB1); - /* invalid fru id: ACPI 4.0: 17.3.2.6.1 Generic Error Data, * Table 17-13 Generic Error Data Entry */ QemuUUID fru_id = {}; - uint32_t data_length; - block = g_array_new(false, true /* clear */, 1); - - /* This is the length if adding a new generic error data entry*/ - data_length = ACPI_GHES_DATA_LENGTH + ACPI_GHES_MEM_CPER_LENGTH; /* - * It should not run out of the preallocated memory if adding a new generic - * error data entry + * Calculate the size with this block. No need to check for + * too big CPER, as CPER size is checked at ghes_record_cper_errors() */ - assert((data_length + ACPI_GHES_GESB_SIZE) <= - ACPI_GHES_MAX_RAW_DATA_LENGTH); + data_length += ACPI_GHES_GESB_SIZE; /* Build the new generic error status block header */ acpi_ghes_generic_error_status(block, ACPI_GEBS_UNCORRECTABLE, 0, 0, data_length, ACPI_CPER_SEV_RECOVERABLE); /* Build this new generic error data entry header */ - acpi_ghes_generic_error_data(block, uefi_cper_mem_sec, + acpi_ghes_generic_error_data(block, section_type, ACPI_CPER_SEV_RECOVERABLE, 0, 0, ACPI_GHES_MEM_CPER_LENGTH, fru_id, 0); - - /* Build the memory section CPER for above new generic error data entry */ - acpi_ghes_build_append_mem_cper(block, error_physical_addr); - - /* Write the generic error data entry into guest memory */ - cpu_physical_memory_write(error_block_address, block->data, block->len); - - g_array_free(block, true); - - return 0; } /* @@ -424,16 +403,22 @@ void acpi_ghes_add_fw_cfg(AcpiGhesState *ags, FWCfgState *s, ags->present = true; } -int acpi_ghes_record_errors(int source_id, uint64_t physical_address) +void ghes_record_cper_errors(const void *cper, size_t len, + uint16_t source_id, Error **errp) { uint64_t hest_read_ack_start_addr, read_ack_start_addr; uint64_t hest_addr, cper_addr, err_source_struct; uint64_t hest_err_block_addr, error_block_addr; - uint32_t num_sources, i, ret; + uint32_t num_sources, i; AcpiGedState *acpi_ged_state; AcpiGhesState *ags; uint64_t read_ack; + if (len > ACPI_GHES_MAX_RAW_DATA_LENGTH) { + error_setg(errp, "GHES CPER record is too big: %ld", len); + return; + } + acpi_ged_state = ACPI_GED(object_resolve_path_type("", TYPE_ACPI_GED, NULL)); g_assert(acpi_ged_state); @@ -442,9 +427,6 @@ int acpi_ghes_record_errors(int source_id, uint64_t physical_address) hest_addr = le64_to_cpu(ags->hest_addr_le); cpu_physical_memory_read(hest_addr, &num_sources, sizeof(num_sources)); - if (!physical_address) { - return -1; - } err_source_struct = hest_addr + sizeof(num_sources); @@ -472,8 +454,8 @@ int acpi_ghes_record_errors(int source_id, uint64_t physical_address) err_source_struct += HEST_GHES_V2_TABLE_SIZE; } if (i == num_sources) { - error_report("HEST: Source %d not found.", source_id); - return -1; + error_setg(errp, "HEST: Source %d not found.", source_id); + return; } /* Navigate though table address pointers */ @@ -495,12 +477,55 @@ int acpi_ghes_record_errors(int source_id, uint64_t physical_address) cpu_physical_memory_read(read_ack_start_addr, &read_ack, sizeof(read_ack)); + /* zero means OSPM does not acknowledge the error */ + if (!read_ack) { + error_setg(errp, + "Last CPER record was not acknowledged yet"); + return; + } + read_ack = cpu_to_le64(0); cpu_physical_memory_write(read_ack_start_addr, &read_ack, sizeof(read_ack)); - ret = acpi_ghes_record_mem_error(error_block_addr, physical_address); - return ret; + /* Write the generic error data entry into guest memory */ + cpu_physical_memory_write(cper_addr, cper, len); +} + +int acpi_ghes_record_errors(int source_id, uint64_t physical_address) +{ + /* Memory Error Section Type */ + const uint8_t guid[] = + UUID_LE(0xA5BC1114, 0x6F64, 0x4EDE, 0xB8, 0x63, 0x3E, 0x83, \ + 0xED, 0x7C, 0x83, 0xB1); + Error *errp = NULL; + GArray *block; + + if (!physical_address) { + error_report("can not find Generic Error Status Block for source id %d", + source_id); + return -1; + } + + block = g_array_new(false, true /* clear */, 1); + + ghes_gen_err_data_uncorrectable_recoverable(block, guid, + ACPI_GHES_MAX_RAW_DATA_LENGTH); + + /* Build the memory section CPER for above new generic error data entry */ + acpi_ghes_build_append_mem_cper(block, physical_address); + + /* Report the error */ + ghes_record_cper_errors(block->data, block->len, source_id, &errp); + + g_array_free(block, true); + + if (errp) { + error_report_err(errp); + return -1; + } + + return 0; } bool acpi_ghes_present(void)